如何继承带有视图的Xamarin窗体基类Page？

using Xamarin.Forms;

namespace YourNamespace
{
    public class CustomPage : ContentPage
    {
        public CustomPage()
        {
            // 添加自定义的视图和逻辑代码
            // 例如：
            var label = new Label
            {
                Text = "Hello Xamarin.Forms!"
            };

            var button = new Button
            {
                Text = "Click Me"
            };
            button.Clicked += (sender, e) =>
            {
                label.Text = "Button Clicked!";
            };

            var stackLayout = new StackLayout
            {
                Children = { label, button }
            };

            Content = stackLayout;
        }
    }
}